Switch and signal track trip.



PATENTEDJANfS, 190

0. M. HURS'L- SWITCH AND SIGNAL TRACK TRIP.

APPLICATION rILnn 'ULY a, 1905.

CHARLES M. nnns'r, or .RA'WLINS, WYOMING. SWITCH AND SIGNAL TRACK TRIP- To all whom. it may concern:

Be it known that I, CHARLES M. HURsT, a" citizen of the United States, and a resident of Rawlins, county of Carbon, and State of Wyoming, have invented certain new and use I ful Improvements in Switch and Signal Track engaged by an improved trip,

inafter described,

shoe or appurtenance (not shown) of a passing 'train,which. will ride up on the lever'with Trips, of which the following is a specification, and which are illustrated in the accompanyingdrawings, forming a partthereof.

he invention relates to trip mechanism of the so'called .apron type, adaptedto be] appurtenance of. a railroadtrain for actuating a switch or signal, the object of the invention being to simplify the construction of devices of. this character while insuring positive action.

The invention and which is illustrated in the accompanying drawin s, in which Figure 1 represents a 'si e elevationof the a portion of a railway-track being shown. Fig. 2 is a. plan view of the same, some of th'e parts of the trip being 'brokenaway. Figs. 3., 4,5,, 6, and Kate enlarged details of the trip.- p e device is intended to be located adjacent one of the rails, as 10, of a railway-track and is carried-by a pair of plates 11' 12, secured to the track-ties,as 13 14. The trip comprises a pair of levers each being pivotally'attached to one of the plates 11 12, their ing pivotally united, so "that they will swing free ends meeting and betogether. As shown, the levers 15 and '16 are in the form ofT-bars, the cross-flange being uppermost and serving as a trip to receive the which it comes in contact and'depress it and with it necessarily-itscompanion. Preferably themeeting ends of the levers bein to permit of t e overlapping oftheir web portions.. The pivot 17, unitingthe two levers,

Specificationof Letters Patent. Application filed July 8, 1905. Serial'No. 2e

consists in the-device her ex cut away Patented Ja'n..2 3-,, 1906.

'- passes through an oblong slot in one or both of them, as shown at 18, in order that their oscillating movements about theirdiflerent centers may beupermitted The pivot 17 constitutes the'wrist-pin'of a crank-arm 19 of a rock-shaft suitable boxes 21-, carried by one of'the railway-ties, as-22, the shaftbein falso provided with acrank-arm 23, tow ich is taclied a rod or cable24, leading to the switch or signal mechanismfto be actuated, and

desired form, need not be which, being illustrated. v

A suitablev spring'is providedfor normally holding the levers 15 16 in an inclined-position, as' shown in Fig.1. This spring may be applied in any desired manner. As shown, this spring 25 is helical in formandleads from-the cran I A train-a direction wi of any preaching the trip from; either ride up one'of its'inclines and thus operating the s ring ,25 will again restoreit to its 'incline position in readiness for 'by' the next passing train.

p I claim as my inventioncombination, a-pair of levers pivoted to fixed merit, a shaft having a air of crank-arms the wrist-pin of one th'ereo pivotally unitin the 'two'levers, and a rod or one of the crank-arms of saidsha .ft'.v I

v 2. In a device of the character described ,in

combination, a pair-ofl'evers' pivoted to'fixed supports and havin their free ends inengagemerit, a crank-sha t, the wrist-pin'of 'pivotally'u'nites the levers, and a. rod or cable eading from a crank-arm of the shaft; 1 CHARLES .M.:HURST.

Witnesses: I r

HAR EY V. MrLLnn, J A. S RowBRmeE, Jr. a f

arm 23 to=the adjacent rail-tie, as'26.- 5 depress both levers, ,rocking the shaft and I the switch or signal mechanism. 1 As the pressure upon the tripiis relieved engagement supports and having theirfree ends in.engagecable leading o'mL s 20,,pivotedlin 1. In adevice of the character descri bed'in Wine 

